LICENSE, contracts. A right given by some competent authority to do an act, which without such authority would be illegal. The instrument or writing which secures this right, is also called a license. Vide Ayl. Parerg, 353; 15 Vin. Ab. 92; Ang. Wat. Co. 61, 85.

2. A license is express or implied. An express license is one which in direct terms authorizes the performance of a certain act; as a license to keep a tavern given by public authority.

3. An implied license is one which though not expressly given, may be presumed from the acts of the party having a right to give it. The following are examples of such licenses: 1. When a man knocks at another's door, and it is opened, the act of opening the door licenses the former to enter the house for any lawful purpose. See Hob. 62. A servant is, in consequence of his employment, licensed to admit to the house, those who come on his master's business, but only such persons. Selw. N. P. 999; Cro. Eliz. 246. It may, however, be inferred from circumstances that the servant has authority to invite whom he pleases to the house, for lawful purposes. See 2 Greenl. Ev. §427; Entry.

4. A Iicense is either a bare authority, without interest, or it is coupled with an interest. 1. A bare license must be executed by the party to whom it is given in person, and cannot be made over or assigned by him to another; and, being without consideration, may be revoked at pleasure, as long as it remains executory; 39 Hen. VI. M. 12, page 7; but when carried into effect, either partially or altogether, it can only be rescinded, if in its nature it will admit of revocation, by placing the other side in the same situation in which he stood before he entered on its execution. 8 East, R. 308; Palm. 71; S. C. Poph. 151; S. C. 2 Roll. Rep. 143, 152.

5. - 2. When the license is coupled with an interest the authority conferred is not properly a mere permission, but amounts to a grant, which cannot be revoked, and it may then be assigned to a third person. 5 Hen. V., M. 1, page 1; 2 Mod. 317; 7 Bing. 693; 8 East, 309; 5 B. & C. 221; 7 D. & R. 783; Crabb on R. P. §521 to 525; 14 S. & R 267; 4 S. & R. 241; 2 Eq. Cas. Ab. 522. When the license is coupled with an interest, the formalities essential to confer such interest should be observed. Say. R. 3; 6 East, R. 602; 8 East, R. 310, note. See 14 S. & R. 267; 4 S. & R. 241; 2 Eq. Cas. Ab. 522; 11 Ad. & El. 34, 39; S. C. 39 Eng, C. L. R. 19.

LICENSE, International law. An authority given by one of two belligerent parties, to the citizens or subjects of the other, to carry on a specified trade.

2. The effects of the license are to suspend or relax the rules of war to the extent of the authority given. It is the assumption of a state of peace to the extent of the license. In the country which grants them, licenses to carry on a pacific commerce are stricti juris, as being exceptions to the general rule; though they are not to be construed with pedantic accuracy, nor will every small deviation be held to vitiate the fair effect of them. 4 Rob. Rep. 8; Chitty, Law of Nat. 1 to 5, and 260; 1 Kent, Com. 164, 85.

LlCENSE, pleading. The name of a plea of justification to an action of trespass. A license must be specially pleaded, and cannot, like liberum tenementum, be given in evidence under the general issue. 2. T. R. 166, 108